Remove an old workaround that was kept around for ABI-compatibility on x86-64 between different LLVM versions. This means LLVM r67588 is required if you want to compile for x86-64, otherwise the backend will assert when you try to return e.g. struct { int i; char c; } from a function. (In particular, this is no longer compatible with LLVM 2.5) It also means that any code returning small structs on x86-64 will probably need to be recompiled in order to be linkable to code compiled with this change.

module bug60;
extern(C) int printf(char*, ...);

void func(T...)(T t)
{
    foreach(v;t) {
        if (v.length) {
            foreach(i;v) {
                printf("%d\n", i);
            }
        }
    }
}
void main()
{
    auto a = [1,2,3];
    func(a);
}